LTE干扰排查和处理指导书
4 D 频段干扰分析、排查及解决方案 ....................................................................................23 4.1 干扰的危害性.............................................................................................................23 4.1.1 WLAN 与 TD-LTE 间的互干扰 ........................................................................23 4.1.2 TD-LTE 基站和 WLAN AP 间的干扰...............................................................23 4.1.3 TD-LTE 终端和 WLAN 终端间的干扰 ............................................................24 4.1.4 D 频段 TD-LTE 对北斗卫星接收机的干扰 ....................................................25 4.1.5 D 频段 TD-LTE 基站与雷达间的互干扰 ........................................................25 4.1.6 D 频段 TD-LTE 与 MMDS 和射电天文系统间干扰.......................................25 4.1.7 D 频段内多 TDD 运营商间干扰 ....................................................................25
4.1.8 电信 CDMA850 三次谐波干扰 ......................................................................25 4.2 干扰排查方法.............................................................................................................26 4.3 干扰规避方案.............................................................................................................26 5 案例.........................................................................................................................................26 5.1 外部干扰.....................................................................................................................26 5.2 杂散干扰.....................................................................................................................27 5.3 GSM 谐波干扰...........................................................................................................29 5.4 阻塞干扰.....................................................................................................................30 5.5 干扰特征案例.............................................................................................................31
2 F 频段干扰分析、排查、解决方案及验证 ............................................................................8 2.1 干扰的危害性...............................................................................................................8 2.1.1 DCS1800 带外阻塞干扰 ...................................................................................8 2.1.2 DCS1800 带外杂散干扰 ...................................................................................9 2.1.3 DCS1800 三阶互调干扰 .................................................................................10 2.1.4 GSM900 二次谐波/互调干扰 ........................................................................10 2.1.5 PHS 带内阻塞/杂散干扰 ...............................................................................11 2.1.6 小结.................................................................................................................11 2.2 干扰排查方法.............................................................................................................12 2.2.1 排查方法整体介绍.........................................................................................12 2.2.2 干扰排查步骤.................................................................................................13 2.2.3 干扰规避方案.................................................................................................17 2.2.4 小结.................................................................................................................19
干扰排查和处理
目录
1 概述...........................................................................................................................................2 1.1 干扰产生的原因及分类...............................................................................................2 1.1.1 系统内干扰与系统间干扰.................................................2 1.2 系统内干扰...................................................................................................................3 1.2.1 同频组网...........................................................................................................3 1.2.2 异频组网...........................................................................................................4 1.3 系统间干扰产生原因及分类.......................................................................................5 1.3.1 干扰产生原因...................................................................................................5 1.3.2 干扰分类...........................................................................................................6 1.3.3 TD-LTE 系统间干扰汇总...................................................................................7
